Properties of Cr-Ni and Cr-Ni-Mn steels and alloy 36NKhTYu at low temperatures

Conclusions

1.

Precipitation-hardened alloy 36NKhT Yu has high strength, good ductility, a stable structure, low sensitivity to stress concentrations at low temperatures, and can be used for highly stressed components of cryogenic apparatus.

2.

Austenitic-ferritic steels 15Kh18N12S4T Yu and 12Kh21N5T are characterized by satisfactory strength, ductility, and toughness at temperatures down to 4°K.

3.

Steel 0Kh20N4AG10 has low ductility and is sensitive to stress concentrations at temperatures below 77°K.